Finding the Fourth Proportional to 239.36, 330.30 and 141.13
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Solution
The fourth proportional to 239.36, 330.30 and 141.13 is: 194.75
Step by Step Solution
- Step 1: Write the proportion equation
239.36 : 330.30 = 141.13 : x - Step 2: Convert to fraction form
239.36/330.30 = 141.13/x - Step 3: Cross multiply
239.36x = 330.30 × 141.13 - Step 4: Simplify right side
239.36x = 46,615.24 - Step 5: Solve for x
x = 46,615.24/239.36 - Step 6: Final answer
x = 194.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.